201111100009 has 8 divisors (see below), whose sum is σ = 209931125760. Its totient is φ = 192436860000.

The previous prime is 201111100007. The next prime is 201111100013. The reversal of 201111100009 is 900001111102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 201111100009 - 2¹ = 201111100007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201111099965 and 201111100001.

It is not an unprimeable number, because it can be changed into a prime (201111100007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36443617 + ... + 36449134.

It is an arithmetic number, because the mean of its divisors is an integer number (26241390720).

Almost surely, 2^201111100009 is an apocalyptic number.

It is an amenable number.

201111100009 is a deficient number, since it is larger than the sum of its proper divisors (8820025751).

201111100009 is an equidigital number, since it uses as much as digits as its factorization.

201111100009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72892871.

The product of its (nonzero) digits is 18, while the sum is 16.

The spelling of 201111100009 in words is "two hundred one billion, one hundred eleven million, one hundred thousand, nine".